Callaway BALTRAINER 09 96503-030 Training Shoes Training shoes that use a boat-shaped outsole to help you master a stable swing using your core. These training shoes are designed with a boat-shaped BALTRAIN outsole and are specifically designed for balance training during a golf swing. They help you develop a sense of balance during your swing and prevent excessive weight transfer, allowing you to achieve a stable golf swing using your core. Size...23.5cm